Send BCC e-mail via Gmail by Python

bccEmail.py

import smtplib
from email.mime.text import MIMEText
from email.header import decode_header
from email.header import Header
import pandas as pd
import random
import time


# タイトル
subject = "[Reminder] Meeting"

# 本文
body = """
Dear All,

This is a reminder for meeting.
日本語もOK。

Sincerely,
Meeting organizing committee
"""


if __name__ == '__main__':
    username, password = 'xxx@gmail.com', 'xxx'
    fromAddr  = "xxx@gmail.com"
    host, port = 'smtp.gmail.com', 465
    email_default_encoding = 'iso-2022-jp'


    contact = pd.read_csv("contact_test.csv", encoding="cp932")
    contact = contact.ix[contact["exclude"]!=1, :]
    contact = list(contact["E-mail"])
    address_list = [contact[i:i+5] for i in range(0,len(contact),5)]

    for address_part_list in address_list:
            smtp = smtplib.SMTP_SSL(host, port)
            smtp.ehlo()
            smtp.login(username, password)
            msg = MIMEText(body, 'plain', email_default_encoding)
            msg['Subject'] = Header(subject, email_default_encoding)
            msg['From'] = "Meeting Organizer"
            smtp.sendmail(fromAddr, address_part_list, msg.as_string())
            smtp.close()

            time.sleep(random.uniform(2, 3))

contact_test.csvのE-mailという欄にメールアドレスが入っている。exlude=1の人にはメールを送らない。